| Photophysical characteristics of polyaniline with photochromic azobenzene side groups |
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| 作者姓名： | 封伟 黄琨 万梅香 |
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| 作者单位： | Department of Polymer Materials Science and Engineering, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 60307001). |
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| 摘 要： | Photochromic characteristics and optical molecular reorientation in conducting polymer such as polyaniline derivatives containing photochromic azobenzene moieties (PAPNPAPOA) in side chain are studied. Changes in the UV—vis absorption, refractive index, thickness, contact angle and morphology of these films after irradiation of a linearly polarized light with a wavelength of 365nm are measured. The trans-cis isomerization of PAPNPAPOA is proved irreversible even after withdrawing the UV light for a long time. That the structure of main-chain attends by the trans-cis isomerization of side-chain is confirmed by the absorption and the solution colour during the UV irradiation. These effects are discussed by taking the trans-cis isomerization of azobenzene into consideration.
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| 关 键 词： | 聚阴离子线导数 光色偶氮苯 导电聚合体 折射率 |
| 收稿时间： | 6/8/2004 12:00:00 AM |
Photophysical characteristics of polyaniline with photochromic azobenzene side groups |
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| Feng Wei,Huang Kun and Wan Mei-Xiang.Photophysical characteristics of polyaniline with photochromic azobenzene side groups[J].Chinese Physics B,2005,14(2):306-310. |
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| Authors: | Feng Wei Huang Kun and Wan Mei-Xiang |
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| Institution: | Centre for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China; Department of Polymer Materials Science and Engineering, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Photochromic characteristics and optical molecular reorientation in conducting polymer such as polyaniline derivatives containing photochromic azobenzene moieties (PAPNPAPOA) in side chain are studied. Changes in the UV—vis absorption, refractive index, thickness, contact angle and morphology of these films after irradiation of a linearly polarized light with a wavelength of 365nm are measured. The trans-cis isomerization of PAPNPAPOA is proved irreversible even after withdrawing the UV light for a long time. That the structure of main-chain attends by the trans-cis isomerization of side-chain is confirmed by the absorption and the solution colour during the UV irradiation. These effects are discussed by taking the trans-cis isomerization of azobenzene into consideration. |
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| Keywords: | polyaniline derivatives photochromic azobenzene trans-cis isomerization conducting polymer |
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